JP2008528753A - Composition for producing non-halogen flame retardant insulation using nanotechnology - Google Patents

Composition for producing non-halogen flame retardant insulation using nanotechnology Download PDF

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JP2008528753A
JP2008528753A JP2007553019A JP2007553019A JP2008528753A JP 2008528753 A JP2008528753 A JP 2008528753A JP 2007553019 A JP2007553019 A JP 2007553019A JP 2007553019 A JP2007553019 A JP 2007553019A JP 2008528753 A JP2008528753 A JP 2008528753A
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flame retardant
composition
weight
parts
insulating material
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オウ−ヨン キム
ジ−ノ ナム
ファ−ジュン イム
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LS Cable and Systems Ltd
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LG Cable Ltd
LS Cable and Systems Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18—Heating or cooling the filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/04—Controlling the filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/02—Ingredients treated with inorganic substances
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F13/00—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs
    • G07F13/10—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs with associated dispensing of containers, e.g. cups or other articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/045—Deodorising additives

Abstract

本発明は、ナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物に関する。本発明による組成物は、ベース樹脂のポリオレフィン系樹脂１００重量部に対して、無機難燃剤のナノホウ酸で処理された金属水酸化物１００ないし２５０重量部；上記ベース樹脂の相溶性増進剤のナノ粘土１ないし５０重量部；難燃助剤の所定の金属化合物１ないし５０重量部；及び酸化防止剤０.５ないし５重量部を含んでなることを特徴とする。本発
明の組成物は、難燃性絶縁材料、特に、電線の絶縁被覆層として用いられたときに、従来の製品と比較して、引張強度や伸びなどの機械的強度において同等の物性を維持しながらも、ハロゲン元素を含まないので従来のハロゲン系製品に比べて環境に優しく、特に、高難燃等級のＶＷ‐１の基準にも適した難燃性が確保できるという利点を有する。The present invention relates to a composition for producing a non-halogen flame retardant insulating material using nanotechnology. The composition according to the present invention comprises 100 to 250 parts by weight of a metal hydroxide treated with nanoboric acid as an inorganic flame retardant with respect to 100 parts by weight of a polyolefin resin as a base resin; 1 to 50 parts by weight of clay; 1 to 50 parts by weight of a predetermined metal compound of a flame retardant aid; and 0.5 to 5 parts by weight of an antioxidant. The composition of the present invention maintains the same physical properties in terms of mechanical strength such as tensile strength and elongation compared to conventional products when used as a flame retardant insulating material, particularly as an insulation coating layer for electric wires. However, since it does not contain a halogen element, it has an advantage that it is more environmentally friendly than conventional halogen-based products, and in particular, it can ensure flame retardancy suitable for the high flame retardant grade VW-1.

Description

本発明は、ナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物に関する。より詳しくは、ナノサイズを有する物質をポリオレフィン系ベース樹脂に添加することによりハロゲン元素を含まないにもかかわらず難燃性が向上した絶縁材を製造するための、ナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物に関する。   The present invention relates to a composition for producing a non-halogen flame retardant insulating material using nanotechnology. More specifically, non-halogen-based materials using nanotechnology to produce insulating materials with improved flame retardancy despite the absence of halogen elements by adding nano-sized materials to polyolefin-based base resins The present invention relates to a flame retardant insulating material manufacturing composition.

従来、難燃絶縁材料として汎用的に用いられている、ポリエチレンなどの熱可塑性樹脂は、その化学構造上、水素と炭素などの可燃性物質から構成されている有機物である。したがって、火事発生の際には、発煙濃度が高くなる。また、火事発生の際、有毒ガスを含有する煙を大量に発生させ、二次的な人命被害などを誘発させる問題点を抱いている。一方、臭素や塩素等のハロゲン成分を含んだハロゲン系難燃絶縁材が用いられているが、これは製造及び使用上の安全性に問題が発生する可能性があり、特に、燃焼の際にはダイオキシンのような有毒ガスを放出する問題がある。したがって、環境への優しさの観点からハロゲン元素を含まない難燃絶縁材料に対する研究がなされてきた。   Conventionally, a thermoplastic resin such as polyethylene, which is widely used as a flame retardant insulating material, is an organic substance composed of a flammable substance such as hydrogen and carbon because of its chemical structure. Therefore, when a fire occurs, the smoke concentration increases. In addition, in the event of a fire, there is a problem that a large amount of smoke containing toxic gas is generated, causing secondary damage to human life. On the other hand, halogen-based flame retardant insulating materials containing halogen components such as bromine and chlorine are used, but this may cause problems in manufacturing and use safety, especially during combustion. Has the problem of releasing toxic gases such as dioxins. Therefore, research has been made on flame-retardant insulating materials that do not contain halogen elements from the viewpoint of environmental friendliness.

近年、環境に優しい難燃剤の技術分野においては、多様な環境に優しい成分についての難燃性の研究がなされてきた。特に、金属水酸化物系無機難燃剤を用いる場合には、ＵＬ
９４のＶＯ等級を満たすが、高難燃等級と言えるＶＷ‐１等級を満たすことができない
問題点が確認されている。無機物粘土が用いられた場合には、ＵＬ ９４のＶＯ等級を満
たすが、上述のように高難燃等級と言えるＶＷ‐１等級を満たすことはできていない点が確認された。 In recent years, in the technical field of environmentally friendly flame retardants, research on flame retardancy has been conducted on various environmentally friendly components. In particular, when using metal hydroxide inorganic flame retardant, UL
Although the VO rating of 94 is satisfied, it has been confirmed that the VW-1 rating, which is a high flame retardant rating, cannot be satisfied. When inorganic clay was used, it was confirmed that the UL VO rating was satisfied, but the VW-1 rating, which can be said to be a high flame retardant rating, was not achieved as described above.

本発明は、このような従来技術が有する問題点を解決するべく、関連分野での技術的背景の下で、案出された。   The present invention has been devised under the technical background in the related field in order to solve such problems of the prior art.

本発明は、前述した従来技術の問題点を解決するよう案出された。したがって、本発明の目的は、ＶＷ‐１等級を満たすことができる程度の難燃性を有する、ハロゲン元素を含まない、ナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物を提供することにある。   The present invention has been devised to solve the above-mentioned problems of the prior art. Accordingly, an object of the present invention is to provide a composition for producing a non-halogen flame retardant insulating material using nanotechnology, which does not contain a halogen element, and has a flame resistance sufficient to satisfy the VW-1 grade. There is to do.

本発明が解決しようとする技術的課題の達成のため、本発明により提供されるナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物は、ベース樹脂であるポリオレフィン系樹脂１００重量部に対して、無機難燃剤であるナノホウ酸で処理された金属水酸化物１００ないし２５０重量部；上記ベース樹脂の相溶性増進剤であるナノ粘土１ないし５０重量部；難燃助剤である所定の金属化合物１ないし５０重量部；及び酸化防止剤０.５ないし５重量部を含んでなることを特徴とする。   In order to achieve the technical problem to be solved by the present invention, a non-halogen flame-retardant insulating material-producing composition using nanotechnology provided by the present invention comprises 100 parts by weight of a polyolefin resin as a base resin. In contrast, 100 to 250 parts by weight of a metal hydroxide treated with nanoboric acid, which is an inorganic flame retardant; 1 to 50 parts by weight of nanoclay, which is a compatibility enhancer for the base resin, and a predetermined flame retardant aid 1 to 50 parts by weight of a metal compound; and 0.5 to 5 parts by weight of an antioxidant.

上記ベース樹脂を構成するポリオレフィン系樹脂は、オレフィン重合体またはエチレン系共重合体であれば望ましく、上記エチレン系共重合体は、ビニルアセテート（ＶＡ）含量が１０ないし４０％であるエチレンビニルアセテート（ＥＶＡ）であればさらに望ましい。このとき、上記エチレン系共重合体に含まれるビニルアセテート（ＶＡ）の含量が上記数値の下限に達していない場合には、難燃剤を充填しにくくなり所定の難燃性の確保に問題が発生して望ましくない。一方、上記数値の上限を超過する場合には、引張強度や摩
耗性などに関する機械的な強度が減少して製品物性の確保に困る問題が発生して望ましくない。 The polyolefin resin constituting the base resin is preferably an olefin polymer or an ethylene copolymer, and the ethylene copolymer is an ethylene vinyl acetate (vinyl acetate (VA) content of 10 to 40%) EVA) is more desirable. At this time, when the content of vinyl acetate (VA) contained in the ethylene-based copolymer does not reach the lower limit of the above numerical value, it becomes difficult to fill the flame retardant, and there is a problem in securing a predetermined flame retardancy. It is not desirable. On the other hand, when the upper limit of the above numerical value is exceeded, the mechanical strength related to tensile strength, wearability, etc. is reduced, which causes a problem that it is difficult to secure product properties, which is not desirable.

上記無機難燃剤の金属水酸化物を表面処理するために用いられたナノホウ酸は、オルトホウ酸、メタホウ酸及び四ホウ酸からなる群より選択される１種単独または二以上の混合物であり、該選択されたナノホウ酸のサイズは１.０μｍ以下であり、かつ、その表面積
が１ないし１０ｍ2／ｇであれば望ましい。このとき、上記ナノホウ酸で処理された金属
水酸化物は、燃焼の際に固体膜を形成して、難燃性を向上させるチャー（ｃｈａｒ）の容易な形成を助ける役割を果たす。上記無機難燃剤の含量が、上記数値の下限に達していない場合には、ホウ酸の表面処理効果を得ることができないため望ましくない。これに対して、上記数値の上限を超過する場合には、上記組成物を用いた圧出加工の際に、加工性が劣化することはもちろん機械的物性も低下するため望ましくない。一方、上記ナノホウ酸のサイズが上記数値を超過する場合には、前記組成物の分散性が弱化して製品の物性再現性が劣化するため望ましくない。また、上記ナノホウ酸の表面積が上記数値の下限に達していない場合には、物性再現性が劣化するため望ましくなく、上記数値の上限を超過する場合には、技術的な困難性により適切な材料の確保が容易ではないため価格が上昇して経済的な面で望ましくない。 The nanoboric acid used to surface-treat the metal hydroxide of the inorganic flame retardant is one or a mixture of two or more selected from the group consisting of orthoboric acid, metaboric acid and tetraboric acid, Desirably, the selected nanoboric acid has a size of 1.0 μm or less and a surface area of 1 to 10 m 2 / g. At this time, the metal hydroxide treated with the nanoboric acid plays a role of forming a solid film upon combustion and assisting easy formation of char that improves flame retardancy. When the content of the inorganic flame retardant does not reach the lower limit of the above numerical value, it is not desirable because the surface treatment effect of boric acid cannot be obtained. On the other hand, when the upper limit of the above numerical value is exceeded, not only is the workability deteriorated but also the mechanical properties are lowered during the extrusion process using the composition, which is not desirable. On the other hand, when the size of the nanoboric acid exceeds the above numerical value, it is not desirable because the dispersibility of the composition is weakened and the physical property reproducibility of the product is deteriorated. Further, if the surface area of the nanoboric acid does not reach the lower limit of the above numerical value, it is not desirable because the physical property reproducibility deteriorates. If the upper limit of the numerical value is exceeded, an appropriate material due to technical difficulties Since it is not easy to secure the price, the price increases, which is not desirable from an economic viewpoint.

上記ナノ粘土は、モンモリロナイト、ヘクトライト、バーミキュライト及びサポナイトからなる群より選択される１種単独または二以上の混合物であり、かつ、該ナノ粘土のサイズは１.０μｍ以下であれば望ましい。このとき、上記ナノ粘土は、極性基を有する構
造を有しているため、ベース樹脂との相溶性を増進する役割を果たす。上記ナノ粘土の含量が、上記数値の下限に達していない場合には、チャーの形成が低下して難燃性が劣化するため望ましくなく、上記数値の上限を超過する場合には、上記組成物を用いて製造された製品の伸びが低下する問題が発生するため望ましくない。 The nanoclay is preferably one kind selected from the group consisting of montmorillonite, hectorite, vermiculite and saponite, or a mixture of two or more, and the size of the nanoclay is preferably 1.0 μm or less. At this time, since the nanoclay has a structure having a polar group, it plays a role of promoting compatibility with the base resin. When the content of the nano clay does not reach the lower limit of the above numerical value, it is not desirable because the formation of char is reduced and the flame retardancy is deteriorated. This is not desirable because it causes a problem that the elongation of a product manufactured by using this material decreases.

上記難燃助剤は、モリブデン系化合物またはシリカ系化合物であれば望ましいが、必ずしもこれに限定されない。上記難燃助剤は、チャーの固化による難燃性を補強し、燃焼の際に発生する煙の量を減少させる役割を果たす。上記難燃助剤の具体的な例として、ホスフェートジンクオキシド（ｐｈｏｓｐｈａｔｅｄ ｚｉｎｃ ｏｘｉｄｅ）、アンモニウムオクタモリブデン、ジンクベースにモリブデン錯化合物及びジンクベースのモリブデンにマグネシウムオキシドとシリカとを添加した無機添加剤からなる群より選択される一つのモリブデン系化合物、ハイドロタルサイト及び粉砕シリカ（ｇｒｏｕｎｄ ｓｉｌｉｃａ
）、沈殿シリカ及びヒュームドシリカからなる群より選択される一つのシリカ系化合物からなる群より選択される、一以上の金属化合物であれば望ましい。 The flame retardant aid is preferably a molybdenum compound or a silica compound, but is not necessarily limited thereto. The flame retardant aid serves to reinforce flame retardancy due to the solidification of char and to reduce the amount of smoke generated during combustion. Specific examples of the flame retardant aid include phosphate zinc oxide, ammonium octamolybdenum, a zinc complex based molybdenum complex compound, and zinc based molybdenum added with magnesium oxide and silica. One molybdenum-based compound selected from the group, hydrotalcite and ground silica
), One or more metal compounds selected from the group consisting of one silica-based compound selected from the group consisting of precipitated silica and fumed silica.

一方、上記難燃助剤の含量が上記数値の下限に達していない場合には、十分な難燃性の確保が困難となるため望ましくなく、上記数値の上限を超過する場合には、上記組成物を用いて製造された製品の伸びや引張強度などの機械的な強度が低下する可能性があるため望ましくない。   On the other hand, if the content of the flame retardant aid does not reach the lower limit of the above numerical value, it is not desirable because it is difficult to ensure sufficient flame retardancy, and if the upper limit of the numerical value is exceeded, the above composition This is not desirable because mechanical strength such as elongation and tensile strength of a product manufactured using a product may be lowered.

上記酸化防止剤は、上記組成物を用いて製造された製品内に発生したラジカルを捕えて新しいラジカルの発生を抑制することにより、該製品の老化を防止する役割を果たす。上記酸化防止剤の含量が上記数値の下限に達していない場合には、前述した作用を目的として行った該酸化防止剤の添加の効果が期待しにくいため望ましくなく、一方、上記数値の上限を超過する場合には、ブルーミングまたはブリードアウト効果が発生するため望ましくない。   The antioxidant plays a role of preventing aging of the product by capturing radicals generated in the product produced using the composition and suppressing generation of new radicals. When the content of the antioxidant does not reach the lower limit of the above numerical value, it is not desirable because the effect of the addition of the antioxidant performed for the purpose of the above-described effect is difficult to expect. If it exceeds, blooming or bleedout effects will occur, which is undesirable.

一方、前述したナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物は、非ハロゲン系難燃性電線用被覆絶縁層を製造するために、より望ましく用いられる。   On the other hand, the composition for producing non-halogen flame retardant insulating materials using the nanotechnology described above is more desirably used for producing a coating insulation layer for non-halogen flame retardant electric wires.

以下、本発明を具体的に説明するために実施例を挙げて説明する。しかし、本発明による実施例は種々の形態に変形し得るものであり、本発明の範囲が下記で詳述する実施例に限定されると解釈してはならない。本発明の実施例は、本発明の属する分野における通常の知識を有する者に本発明をより完全に説明するために提供されるものである。   Hereinafter, the present invention will be described with reference to examples. However, the examples according to the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

実施例（１‐４）及び比較例（１‐４）
本発明による実施例を、実施例１ないし４、および、これと対比する目的として比較例１ないし４に分類して、それぞれの組成物の成分及び含量を下記表１のように用意した。 Example (1-4) and Comparative Example (1-4)
Examples according to the present invention were classified into Examples 1 to 4 and Comparative Examples 1 to 4 for the purpose of comparison, and the components and contents of the respective compositions were prepared as shown in Table 1 below.

Figure 2008528753
Figure 2008528753

上記表１において、上記ＥＶＡは、エチレンビニルアセテート（ビニルアセテート含量が３３％である）であり、上記ＥＥＡは、エチレンエチルアクリレート（エチルアクリレート含量が２４％である）であり、上記ホウ酸処理金属水酸化物としては、オルトホウ酸で表面処理された金属水酸化物が用いられ、上記ナノ粘土としては、モンモリロナイトが用いられ、上記モリブデン化合物としては、アンモニウムモリブデンで処理された炭酸カルシウムが用いられ、上記シリカ化合物としては、粉砕シリカが用いられ、上記架橋促進剤としては、ＴＭＰＴＭＡ（Ｔｒｉｍｅｔｈｙｌｏｌｐｒｏｐａｎｅｔｒｉｍｅｔｈａｃｒｌａｔｅ）が用いられた。一方、上記加工助剤としては、本発明の属する分野において通常用いられる脂肪酸系加工助剤を用いた。   In Table 1 above, the EVA is ethylene vinyl acetate (vinyl acetate content is 33%), the EEA is ethylene ethyl acrylate (ethyl acrylate content is 24%), and the boric acid-treated metal As the hydroxide, a metal hydroxide surface-treated with orthoboric acid is used, as the nanoclay, montmorillonite is used, and as the molybdenum compound, calcium carbonate treated with ammonium molybdenum is used, As the silica compound, pulverized silica was used, and as the cross-linking accelerator, TMPTMA (Trimethylol propantrimethacrylate) was used. On the other hand, as the processing aid, a fatty acid processing aid usually used in the field to which the present invention belongs was used.

電線用絶縁被覆層の調製
上記表１に列挙された実施例１ないし４及び比較例１ないし４による組成物を用いた電線被覆層用絶縁材の調製方法を、次のように段階的に説明する。 Preparation of Insulating Coating Layer for Electric Wires A method for preparing an insulating material for electric wire coating layers using the compositions according to Examples 1 to 4 and Comparative Examples 1 to 4 listed in Table 1 above is described step by step as follows. To do.

上記実施例１ないし４による組成物及び比較例１ないし４による組成物をそれぞれ調製
した（Ｓ１段階）。上記調製した組成物を１２０Ｌの混練機に投入して１５分間（好ましくは、１５ないし２０分）混練した（Ｓ２段階）。上記混練した組成物を、７５ｍｍ単軸スクリュー押出機を用いて１５０℃（望ましくは１３０ないし１８０℃）の押出温度条件下で押出し、絶縁材とした（Ｓ３段階）。上記押出された難燃材に８Ｍｒａｄ（望ましくは５ないし１０Ｍｒａｄ）の電子ビームを照射して架橋させた（Ｓ４段階）。 The compositions according to Examples 1 to 4 and the compositions according to Comparative Examples 1 to 4 were prepared (Step S1). The prepared composition was put into a 120 L kneader and kneaded for 15 minutes (preferably 15 to 20 minutes) (step S2). The kneaded composition was extruded under an extrusion temperature condition of 150 ° C. (preferably 130 to 180 ° C.) using a 75 mm single screw extruder to obtain an insulating material (step S3). The extruded flame retardant was crosslinked by irradiation with an electron beam of 8 Mrad (preferably 5 to 10 Mrad) (step S4).

試験及び評価
前述の実施例１ないし４及び比較例１ないし４による組成物を用いて上記Ｓ１ないしＳ４段階に従って調製された電線用被覆層として用いるための絶縁材の試片をそれぞれ採取した。その後、常温物性の評価項目として、引張強度と伸びとをＵＬ １５８１により測
定した。難燃性の評価項目として、限界酸素指数（ＬＯＩ）と高難燃等級（ＶＷ‐１）の合否とを基準として採用した。このとき、ＬＯＩは、ＡＳＴＭ Ｄ ２８６３により測定し、ＶＷ‐１は、ＵＬ規格の垂直燃焼試験装置により評価した。上記常温物性の評価項目及び難燃性の評価項目についての試験及び評価の結果を下記表２にまとめた。 Tests and Evaluations Specimens of insulating materials to be used as the coating layers for electric wires prepared according to the above-described steps S1 to S4 using the compositions according to Examples 1 to 4 and Comparative Examples 1 to 4, respectively, were collected. Thereafter, tensile strength and elongation were measured by UL 1581 as evaluation items of room temperature physical properties. As the evaluation items of flame retardancy, limit oxygen index (LOI) and pass / fail of high flame retardancy (VW-1) were adopted as standards. At this time, LOI was measured by ASTM D 2863, and VW-1 was evaluated by a UL standard vertical combustion test apparatus. Table 2 below summarizes the results of the tests and evaluations regarding the evaluation items for normal temperature properties and the evaluation items for flame retardancy.

Figure 2008528753
Figure 2008528753

上記表２を通じて確認できるように、引張強度及び伸びについては、実施例１ないし４の全ての場合において、比較的均一の数値を有しており、かつ、電線製品で求められる物性値を満たしていたが、比較例１及び３の場合には、引張強度及び伸びが相対的に小さいと評価され、したがって、特性に問題があることが分かる。一方、難燃性評価項目については、垂直燃焼試験装置を用いて評価（ＶＷ‐１）した。その結果、比較例１ないし４の全ての場合において製品上欠点が発見されている反面、実施例１ないし４の全ての場合においては製品上欠点がないことが確認できた。したがって、実施例１ないし４においては、本発明による発明の効果が充分に満たされることが確認された。   As can be confirmed through Table 2 above, the tensile strength and elongation have relatively uniform numerical values in all cases of Examples 1 to 4 and satisfy the physical property values required for electric wire products. However, in the case of Comparative Examples 1 and 3, it is evaluated that the tensile strength and the elongation are relatively small, and thus it is understood that there is a problem in the characteristics. On the other hand, the flame retardant evaluation items were evaluated (VW-1) using a vertical combustion test apparatus. As a result, in all cases of Comparative Examples 1 to 4, product defects were found, but in all of Examples 1 to 4, it was confirmed that there were no product defects. Therefore, in Examples 1 to 4, it was confirmed that the effects of the invention according to the present invention were sufficiently satisfied.

以上に述べたように、本発明の最適な実施例が開示された。ここで明細書及び添付された請求項に用いられた特定の用語は、単に当業者に本発明を詳しく説明するための目的で用いられたものであって、意味の限定や特許請求の範囲に記載された本発明の範囲を制限するために用いられたものではない。   As described above, the preferred embodiment of the present invention has been disclosed. Certain terminology used herein in the specification and appended claims is merely used to describe the present invention in detail to those skilled in the art, and is intended to limit the meaning and scope of the claims. It is not used to limit the scope of the invention described.

本発明によるナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物は、難燃絶縁材料、特に、電線の絶縁被覆層として用いられたときに、従来の製品と比較して、引張強度や伸びなどの機械的強度において同等の物性を維持しながらも、ハロゲン元素を含まないので従来のハロゲン系製品に比べて環境に優しく、特に、高難燃等級のＶＷ‐１の基準にも適した難燃性が確保できるという利点を有する。   The composition for producing non-halogen flame retardant insulation material using nanotechnology according to the present invention is a flame retardant insulation material, particularly when used as an insulation coating layer for electric wires. While maintaining the same physical properties in mechanical strength such as strength and elongation, it does not contain halogen elements, so it is more environmentally friendly than conventional halogen-based products. It has the advantage that suitable flame retardance can be ensured.

Claims (7)

ベース樹脂であるポリオレフィン系樹脂１００重量部に対して、
無機難燃剤であるナノホウ酸で処理された金属水酸化物１００ないし２５０重量部；
上記ベース樹脂の相溶性増進剤であるナノ粘土１ないし５０重量部；
難燃助剤である所定の金属化合物１ないし５０重量部；及び
酸化防止剤０.５ないし５重量部
を含んでなることを特徴とするナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物。 For 100 parts by weight of polyolefin resin as the base resin,
100 to 250 parts by weight of a metal hydroxide treated with nanoboric acid, an inorganic flame retardant;
1 to 50 parts by weight of nanoclay which is a compatibility enhancer for the base resin;
Production of non-halogen flame retardant insulating material using nanotechnology, comprising 1 to 50 parts by weight of a predetermined metal compound which is a flame retardant aid; and 0.5 to 5 parts by weight of an antioxidant Composition. 上記ベース樹脂を構成するポリオレフィン系樹脂は、オレフィン重合体またはエチレン系共重合体であることを特徴とする請求項１に記載のナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物。   The composition for producing a non-halogen flame-retardant insulating material using nanotechnology according to claim 1, wherein the polyolefin resin constituting the base resin is an olefin polymer or an ethylene copolymer. . 上記エチレン系共重合体は、ビニルアセテート（ＶＡ）含量が１０ないし４０％であるエチレンビニルアセテート（ＥＶＡ）であることを特徴とする請求項２に記載のナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物。   The non-halogen flame retardant using nanotechnology according to claim 2, wherein the ethylene copolymer is ethylene vinyl acetate (EVA) having a vinyl acetate (VA) content of 10 to 40%. For producing a conductive insulating material. 上記無機難燃剤である金属水酸化物を表面処理するために用いられるナノホウ酸は、オルトホウ酸、メタホウ酸及び四ホウ酸からなる群より選択される１種単独または二以上の混合物であり、該ナノホウ酸のサイズは１.０μｍ以下であり、かつ、該ナノホウ酸の表
面積が１ないし１０ｍ2／ｇであることを特徴とする、請求項１に記載のナノ技術を用い
た非ハロゲン系難燃性絶縁材製造用組成物。 The nanoboric acid used to surface-treat the metal hydroxide that is the inorganic flame retardant is one or a mixture of two or more selected from the group consisting of orthoboric acid, metaboric acid and tetraboric acid, The non-halogen flame retardant using nanotechnology according to claim 1, wherein the nanoboric acid has a size of 1.0 µm or less and a surface area of the nanoboric acid is 1 to 10 m 2 / g. For producing a conductive insulating material. 上記ナノ粘土は、モンモリロナイト、ヘクトライト、バーミキュライト及びサポナイトからなる群より選択される１種単独または二以上の混合物であり、かつ、該ナノ粘土のサイズ１.０μｍ以下であることを特徴とする、請求項１に記載のナノ技術を用いた非ハロ
ゲン系難燃性絶縁材製造用組成物。 The nanoclay is one kind selected from the group consisting of montmorillonite, hectorite, vermiculite and saponite, or a mixture of two or more, and the size of the nanoclay is 1.0 μm or less, A composition for producing a non-halogen flame-retardant insulating material using the nanotechnology according to claim 1. 上記難燃助剤は、
ホスフェートジンクオキシド（ｐｈｏｓｐｈａｔｅｄ ｚｉｎｃ ｏｘｉｄｅ）、アンモニウムオクタモリブデン、ジンクベースにモリブデン錯化合物及びジンクベースのモリブデンにマグネシウムオキシドとシリカとを添加した無機添加剤からなる群より選択される一つのモリブデン系化合物、ハイドロタルサイト及び粉砕シリカ（ｇｒｏｕｎｄ ｓｉｌ
ｉｃａ）、沈殿シリカ及びヒュームドシリカからなる群より選択される一つのシリカ系化合物からなる群より選択される、一以上の金属化合物であることを特徴とする、請求項１に記載のナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物。 The flame retardant aid is
One molybdenum-based compound selected from the group consisting of phosphate zinc oxide, ammonium octamolybdenum, molybdenum complex compound in zinc base, and inorganic additive in which magnesium oxide and silica are added to zinc base molybdenum; Talcite and ground silica
The nanotechnology according to claim 1, characterized in that it is one or more metal compounds selected from the group consisting of ica), one silica-based compound selected from the group consisting of precipitated silica and fumed silica. A composition for producing a non-halogen flame-retardant insulating material using bismuth. 上記組成物が、非ハロゲン系難燃性電線用被覆層を製造するために用いられることを特徴とする、請求項１ないし６のうち何れか一項に記載のナノ技術を用いた非ハロゲン系難燃性絶縁材製造用組成物。   The non-halogen-based material using nanotechnology according to any one of claims 1 to 6, wherein the composition is used for producing a coating layer for non-halogen-based flame-retardant electric wires. A composition for producing a flame-retardant insulating material.
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